Though the site does not explicitly mention the game, the URL uses the word "subaseka," which is likely an abbreviation of the game's Japanese title 'Subarashiki Kono Sekai' or 'It's a Wonderful World'.

Changing the date of your computer and visiting the site unveils more of the cityscape image and remixed songs from the original game closer to the countdown's end date.

The site also credits Tetsuya Nomura and Gen Kobayashi as character designers for the new game, both of whom worked on The World Ends With You.

The World Ends With You released in 2008 for the Nintendo DS, and garnered a cult following for its unique touchscreen controls and urban Japanese atmosphere.